This AV receiver provides a variety of network functions that enable you to access more sources & also enhance operation. You can connect the receiver to a PC to enjoy Internet Radio & operate your system via Web Browser Control. The AV Controller app (from i Tunes App Store or Google Play) lets you control various functions from your iPod, iPhone, iPad or Android tablets. Thanks to the design this AV receiver supports Air Play, which means they can accept wireless music streaming from iPod touch, iPhone or iPad, as well as from i Tunes on Macs or PCs. This makes it easy to enjoy music from your mobile devices or computer on your home theatre system. You can use view metadata such as song title, artist name as well as album art via AV receivers on-screen display. This AV Receiver lets you use the Yamaha AV Controller app that is downloadable from the i Tunes App Store or Google Play to control power on/off & volume, select input & DSP modes & operate other functions from an iPod, iPhone, iPad or Android devices. A USB (Universal Serial Bus) port on the front panel allows convenient connection of an iPod/iPhone/iPad, which also charges when connected. The digital signal from the iPod/iPhone/iPad is transmitted directly to the AV receiver ensuring there is no signal loss or interference, so you enjoy the best possible sound quality. In addition, you can use the receivers remote control unit to operate the iPod/iPhone/iPad music playback functions. 3D means the receiver can handle 3D signal data. The Audio Return Channel function enables data to be sent & received via the same HDMI cable, so you can hear the sound from the TV via a single HDMI cable, with no need for an extra optical cable.